AWS Certified Cloud Practitioner (CLF-C01)- AWS Auto Scaling

The video tutorial explains AWS Autoscaling for EC2 instances, focusing on maintaining application availability by adjusting the number of instances based on demand. It covers practical examples, the role of CloudWatch alarms, and the differences between dynamic and predictive scaling. Key components like launch configuration, autoscaling groups, and scaling policies are discussed to ensure effective autoscaling strategies.

What is the primary purpose of AWS Autoscaling?

• To reduce the number of EC2 instances to a minimum.

• To manually manage server capacity.

• To provide a fixed number of EC2 instances regardless of demand.

• To ensure application availability by adjusting EC2 instances based on demand.

What is a major drawback of maintaining a static number of servers?

• It reduces the need for monitoring.

• It automatically adjusts to demand changes.

• It leads to cost inefficiency due to unused capacity.

• It ensures high availability.

How does AWS Autoscaling determine when to add or remove EC2 instances?

• Based on a fixed schedule.

• By user feedback.

• Through manual intervention.

• Using predefined conditions and CloudWatch alarms.

What is the role of Amazon CloudWatch in autoscaling?

• To manage network traffic.

• To monitor usage and trigger scaling actions.

• To create EC2 instances.

• To provide storage for EC2 instances.

What is dynamic scaling in AWS Autoscaling?

• Scaling based on a fixed schedule.

• Scaling in response to real-time demand changes.

• Scaling only during business hours.

• Scaling based on user input.

What does predictive scaling utilize to forecast future demand?

• User surveys.

• Manual predictions.

• Historical load data.

• Random sampling.

What is a launch configuration in AWS Autoscaling?

• A template for defining instance parameters.

• A tool for monitoring network traffic.

• A way to delete EC2 instances.

• A method for creating security groups.

What is the purpose of an autoscaling group?

• To define the VPC and subnets for EC2 instances.

• To manage network security.

• To create user accounts.

• To store application data.

What does a scale-out policy determine?

• How to delete user accounts.

• How to monitor server performance.

• How to increase the number of servers.

• How to reduce the number of servers.

Why is it important to maintain the components defined in a launch configuration?

• To ensure autoscaling can launch instances as needed.

• To reduce the number of EC2 instances.

• To delete unused resources.

• To increase network traffic.